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Proceedings Paper

Diamond-ZnS composite infrared window
Author(s): Akihito Fujii; Hideo Wada; Ken-ichiro Shibata; Shigeru Nakayama; Masato Hasegawa
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Paper Abstract

Rain erosion is a critical problem in the use of conventional Zinc Sulfides as infrared window and dome. In this study, the diamond-ZnS composite, which dispersed diamond particles into a zinc sulfide matrix, was fabricated for improved durability against rain erosion. It was found that mechanical properties, such as hardness, fracture strength and Young modulus of the diamond-ZnS composite improved with the increase in diamond particles. Furthermore the diamonds-ZnS composite consisted of two layers, a diamond dispersed layer and a pure ZnS layer. They have a 280-350kg/mm2 hardness, which is 1.5 times higher than conventional ZnS, while maintaining about 55~70% in average transmittance at the wavelength of 10micrometers bands.

Paper Details

Date Published: 7 September 2001
PDF: 12 pages
Proc. SPIE 4375, Window and Dome Technologies and Materials VII, (7 September 2001); doi: 10.1117/12.439177
Show Author Affiliations
Akihito Fujii, Sumitomo Electric Industries, Ltd. (Japan)
Hideo Wada, Japan Defense Agency (Japan)
Ken-ichiro Shibata, Sumitomo Electric Industries, Ltd. (Japan)
Shigeru Nakayama, Sumitomo Electric Industries, Ltd. (Japan)
Masato Hasegawa, Sumitomo Electric Industries, Ltd. (Japan)

Published in SPIE Proceedings Vol. 4375:
Window and Dome Technologies and Materials VII
Randal W. Tustison, Editor(s)

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